Sattley



M. SATTLEY. GULTIVATOR.

No. 406,856. Patented July 9, 1889 TTEST \NVENTOR /6;4-X; SATTLEY $5WMM/ZMJ. 7211A flu UNITED STATES PATENT OFFICE.-

MARSHALL SAFLEY, OF TAYLORVILL I, ILLINOIS, ASSIGNOR OF ONE-HALF TOARCHIBALD SATTLEY, OF SAME PLACE.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 406,856, dated July 9,1889.

Application filed March 13, 1889. Serial No. 303,129. [No model.)

To all whom it may concern; spring tends to hold the toggle-joint withits Be it known that I, MARSHALL SATTLEY, of pivots as nearly aspossible in alignment, and Taylor-ville, in the county of Christian andas the resistance of the soilagainst the action State of Illinois, haveinvented certain new of the shovel is exerted on the togglejoint 5 anduseful Improvements in Cultivators, of very nearly in line with all thepivots thereof which the following is a specification. the rigidity issuffioient to keep the shovel to My invention relates to the shanks andits work under all ordinary circumstances. shovels of cultivators, andcomprises severally \Vhen an unyielding obstacle is struck by the andaggregately the details of construction shovel, the force of the spring,though greatly to and combinations of parts hereinafter set forthaugmented by the toggle-joint, is overcome and claimed, whereby theshanks and shovels by the force of the team and the shovel swings may beadjusted at different angles with rebackward, as indicated in Fig. 2,and rides lation to their respective beams, and whereby over theobstacle. The backward swing of the shovels may trip automatically whenthe shovel should be sufficient to enable the 15 brought in contact withunyielding obstacles. last-named result to be readily accomplished, Inthe drawings accompanying and forming but it should not be sufficient topermit a a part of this specification, Figure 1 is a side dead-lock tobe formed. Both requirements elevation of my device in operativecondimay be met by properly forming the cranktion-that is, with theshovel in position to extension with relation to the sleeve d. 20 turnthe soil. Fig. 2 shows the device with A medium between laxitysufficient to perthe shovel tripped to ride over an obstacle, mit theshovel to yield in ordinary soil and and Fig. 3 is a perspective View ofthe bracket rigidity sufficient to cause breakage is to be or castingused to carry the shank and trip particularly desired, and the block his of device. utility in attaining this end. \Vhen the trip 25 The beam(4 is secured to the cultivatoris too easily made, the block should bemoved frame in any desirable manner. The bracket upward in order topermit the central pivot 1) comprises the transversely-recessed head If,of the toggle-joint to more nearly approach having bolt-hole b the bossI), having boltthe shank, and vice versa under contrary cirhole I), andthe end I), having the corrugated cumstances. 0 face and the slot 12 Theshank cis in recess Other devices for regulating the toggle b and bolt Zextends through the shank, the joint as above stated will readily occurto bracket, and the beam (1. Corrugated plate those skilled in the artas mechanical equiva 0 fits againstand conforms to the corrugated lentseasily substituted for the block. end of the bracket, and bolt 1)extends through The bolt 1, while securing the bracket and g 5 theplate, the slot, and the beam. The sleeve shank to the beam, may alsoact as a pivot on (Z is pivotally secured to the shank. Itcarries whichthe shank and bracket may be swung shovel g, and it has thecrank-extension d. with relation to the beam. The slot W per- Atoggle-joint composed of bars 6 and f pivmits to a limited extent suchswinging moots at one end in the extension (1 of sleeve (Z tion, and theplate 0, when pressed by the 40 and at the other end on boss U ofbracket 1). tightened bolt against the corrugated end of A bolt 7;secures the toggle-joint on the boss, the bracket,will secure thebracket and shank and. a spring m connects the central portion in anyposition of adjustment. This feature of the joint with a hookedprojection '22 on the of the device enables the shovel to be set atbracket. Inclined block 7L, having slot 71 is various angles with theground without oth- 45 secured to the shank by bolt i in a manner erwisealtering the relation of parts or affectpermittinglongitudinaladjustment on said ing their operation. The toggle-joint in its shank.The inclined face of the block is opshown position strengthens the shankand posed to the central piyot of the toggle-joint, trips away fromtrash that by accumulating and its adjustment is such that the centralin front of the shank could tend to in juriously I00 50 pivot is heldsomewhat to the rear of a right affect or completely prevent theoperation of line drawn through the end pivots. The a joint that trippedina forward direction.

The arrangement of parts permits the use of an extension spiral spring,which is very desirable, though not absolutely essential, as other formsof springs may be used with a result varying only in degree from thatproduced by the use of the extension-spring m.

The device specified is not designed to be used singly, as will bereadily apparent, but

, a cultivator is to be provided with the customary n umber of shanks orshovels conn ected with the frame and operated, with the exceptionsspecified, in any well-known and desirable manner.

I claim as new and desire to secure by Letters Patentv 1. Incultivators, in combination, abea1n,a bracket carrying a shank andsecured to the beam, a sleeve pivoted on the shank and carrying ashovel, a toggle-joint connected with the bracket and with the sleeve, aspring to hold the toggle-joint extended, and an adjustable stop betweenthe toggle-joint and the shank, as set forth.

2. The combination, in cultivators, of the bracket having the transverserecess and the boss, the shank held in the recess of the bracket, thesleeve pivotally connected with the shank and carrying a shove], thetogglejoint pivoted on the boss of the bracket and pivotally connectedwith the sleeve, aspring to hold the toggle-joint extended, and anadjustable stop interposed between the shank and the toggle-joint, asset forth.

3. The combination, in cultivators, of the bracket having the transverserecess, the boss and the slotted end, the beam, the shank held in therecess of the bracket by a bolt that penetrates the shank, the bracketand the beam, the bolt in the beam extending through the slot of thebracket, the sleeve pivotally connected with the shank and carrying ashovel, the toggle-joint pivoted on the boss of the bracket andpivotally connected with the sleeve, and the'extension-spring to extendthe toggle-joint, as set forth.

4. In cultivators, in combination, a beam, a shank on the beam,,a sleevepivotally connected with the shank and carrying a shovel, anapproximately vertical togglejoint connecting the sleeve with the beam,and an approximately horizontal extension-springconnected With the beamand with the togglejoint, near the center thereof, whereby the action ofthe spring is exerted in the manner and for the purpose set forth.

In testimony whereof I sign my name in the presence of two subscribingwitnesses.

MARSHALL SATTLEY.

Attest:

W. R. OALLowAY, Louis HAKE.

